[2] Following an article by Daniel Bergner in The New York Times about Green and his win in that competition, HarperCollins expressed interest in publishing his biography.
[7][8] Green sang the Commendatore in Don Giovanni at the Juilliard School in New York and at Opera Colorado in Denver where he was Resident Artist in 2010–11.
His roles there included Angelotti in Tosca, Sparafucile in Rigoletto, Basilio in The Barber of Seville, a Jew in Salome, Fouquier-Tinville in Andrea Chénier, a Monk in Don Carlos, Titurel in Parsifal, the King in Aida, Timur in Turandot, and Varlaam in Boris Godunov.
He appeared as guest artist in Opéra de Lille's 2016 production of in Il trovatore as Ferrando.
Later that year, Green debuted at the Salzburg Festival in Die Liebe der Danae as one of the Kings.